Mathematics, 27.06.2019 22:00 Heyitsbrandi
Ab is tangent to circle o at b. find the length of the radius r fur ab=5 and ao=8.6
Answers: 1
![AB^2+OB^2=AO^2\\\\5^2+r^2=8.6^2\\\\25+r^2=73.96\qquad\text{subtract 25 from both sides]\\\\r^2=48.96\to r=\sqrt{48.96}\\\\\boxed{r\approx7}](/tpl/images/0024/8411/76498.png)
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Ab is tangent to circle o at b. find the length of the radius r fur ab=5 and ao=8.6...
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